@@ -21,20 +21,20 @@ Follow these best practices when you're working on our code.
### Functions
- Use `function foo(){...}` to declare named functions
- Use function declaration instead of assigning function expression into local variables (`const f = function(){...}`) (Typescript already prevents rebinding functions)
- Exception: Use arrow functions assigned to variables instead of function declarations if the function accesses the outer scope's `this`.
- Use function declaration instead of assigning function expression into local variables (`const f = function(){...}`) (TypeScript already prevents rebinding functions)
- Exception: if the function accesses the outer scope's `this` then use arrow functions assigned to variables instead of function declarations
- Regular functions (as opposed to arrow functions and methods) _should not_ access `this`
-Use nested functions only when the [lexical scope](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures) is utilized
-Only use nested functions when the [lexical scope](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures) is used
#### Use arrow functions in expressions
Avoid
Avoid:
```ts
bar(function(){...})
```
Use
Use:
```ts
bar(()=>{
...
...
@@ -42,9 +42,10 @@ bar(() => {
});
```
Function expressions may only be used if dynamically rebinding `this` is needed (Generally `this` pointer _should not_ be rebound).
Generally `this` pointer _should not_ be rebound.
Function expressions may only be used if dynamically rebinding `this` is needed.
